I have this Santro Xing erlx purchased in May, 2006. This is indeed a cool machine specially on city roads and of course on highways, with superb driving comfort. However, the teething problem is a rattling sound that comes from somewhere near the steering console, once the car hits a bad patch of the road.
One of my friends has confirmed that he too has the same problem (his car would be about by 2 months older than mine) . On enquiring with two HASC, they say that Santro does have this problem all through... and the issue is currently on the Hyundai's drawing board. What do the other owners have to say??